なかかわず、大海たいかいらず
ino nakano kawazu taikaio shirazu

Expression

1. the frog in the well knows nothing of the great ocean

Proverb
世間せけんらずにもほどがある。井なかかわず大海たいかいらず、ということかね。
sekenshirazunimohodoga aru. ino nakano kaerutaikaio shirazu to iu kotokane.
I can't believe you're so clueless. You're like a babe in the woods.
Other forms: